What is the difference between chemoreceptors, photoreceptors, thermoreceptors, and mechanoreceptors

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Which sequence correctly shows the path of carbon dioxide during repiration?

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m